Window flashing



July 19, 1927- A. HOKANSON WINDOW FLASHING 2 Sheets-Sheet 1 Filed DecInventor WWIW'WM y 1927- A. HOKANSON WINDOW FLASHING 1926 2 Sheets-$heet2 Filed Dec I [72 wentor fllfredlfa/iarz 5022,

Patented July 19, 1927.

UNITED, STATES ALFRED HOKLNSON, OF WESTWOOD, NEW JERSEY.

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Application fled December 6, 1928. Serial No. 152,873.

This invention relates to what may be conveniently defined in the art asimproved window flashing, the same having more particular reference to ametallic structure which is used in association with the window frameand wall ofjth'e building to provide a substantially water'andweather-proof joint between. the window frame, and said wall.

It iswell known that in ordinary dwelling structures, the window framesare mounted in the wall openings in such a way as to provide a defective-joint and during driving rain and storm,the elements find way thru thedefective joints in the interior'of the dwelling, frequently ruiningwall paper, plaster, etc.

The purpose of the present invention is to provide an effident structurewhich may be used in association with the ordinary building structuresfor providin a water-tight joint between the window rame and wall.

The articular structural details for accomplis ing the desired resultswill become apparent from the following description and drawings. V

In the accompanying drawings forming'a part of this application, and inwhich like numerals are em loyed to designate like parts throughout t esame Figure 1 is an outside elevational view of the invention showin itas it isassociated with the window an building wall structures.

Fi 2 is an inside view showing more in detai how the flashing structureis associated with the window frame.

Fig. 3 is a central vertical section through Fig. 2.

Fig. 4 is a horizontal section taken approximately upon the plane of theline 4-4: of Fig. 3.

Fig. 5 is a per ective end view of the tog strip of the flas ing.

ig. 6 is a perspective view of one of the side strips of the same, and

Fig. 7 is a perspective view of one corner of one of the boards of thewindow frame facin Referring now to the drawings, and particularly toFig. 3, it will be seen that the reference character 1 designatesgenerally 'the facing structure of the window frame 2, which frameincludes usual guide strips, parting strips, etc. In other words, t eframe is of ordinary construction. In addition, I have shown the silland sub-sill structure. Moreover, as shown in Fig. 1, the referencecharacter 3 designates boards of the building wall structure.

It is not necessary however, that the invention be used in associationwith a wooden building. The improved flashing structure embodies a topstri (see Fig. 5), designated by the reference c aracter 4, a pair ofduplicate side strips 5, (see Fig. 6),and a specially designed bottomstrip 6 (see Fig. 2).

These preferably, are of copper of appropriate gauge. The top strip asrepresented in Fig. 5, has intermediate portion of its lower edge bentat right angles as at 7 to bear upon the to piece of the window frame 2as represented in Fig. 3. It is bent between its upper. and lower edgesto provide a longitudinal rib 8 which is fitted into a groove formed inthe inner face of the complemental board member of the window fac- Ftwill be noticed that at the ends, this rib is split as at 9, the endportion 10 of which is bent down so as not to interfere with the desiredoverlap of the adjacent u per end portion of the complemental si estrips 5, see Fig. 2). Attention is also directed to a vertical slit 11which serves a purpose to be later described. 7

Attention is now directed to Fig. 6 wherein it will be seen that theside strips 5 are also provided on their outer faces with verticallyextending ribs 12 formed by bending the metal between its ends in a wellknown manner. Also on the inner edges are right angularly disposedflanges 13 which cooperate with the window frame 2, as represented inFig. 4. It will also be noted that the u per end portions of thesestrips are provi ed with inward extensions or tongues 14 which hang uponthe window frame structure as represented plainly in Fig. 2.

As far as the lower strip 6 is concerned, this is sim ly in the form ofa flat iece of metal whic is not provided with a d or rib, but is simplynotched out at its center so as to permit the end portions 15 to bebrought into overlappin relation with the lower end portions of tie sidestrips 5 as represented in Fig. 2.

The inner faces of the board members of the frame structure 2 are ofcourse formed with grooves 16 (see Fig. 7) which serve .o accommodatethe ribs 8 and 12 of the respective top and side stri s of the flashingstructure. The ribs are orced firmly into the groove, thus bringing theright angularly disposed flanges in contact with adjacent portions ofthe window frame structure, and the ribs are so located as to allow theouter edge of the strips to project a considerable distance beyond thecorresponding edge portions of the board of the facing 1, thus when thestructure is installed, it has the appearance shown in Fig. '1,

The weather boards of the wall structure may be brought into overlappingrelation with this, so as to allow the major portion of the copper to bedis osed or entirely cover it, as the building p ans require. In anyevent, however, the' flashing will serve to rovide a substantiallyweather-proof joint in the frame structure and Wall board.

It is believed that by considering the description in connection withthe drawin s, a clear understanding of the invention will be had;Therefore, a more lengthy description is thought unnecessary.

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Having thus described my invention, what I claim as new is In a metalflashing structure for windows wherein the window frame is provided withan outer casing surrounding. the window frame provided with longitudinalgrooves on the innerside thereof, said flashing structure comprising thetop strip a nd a pair of flanges provided with bent ribs formedintermediate their longitudinal edges for engage-- bottom strip fordisposition in overlapping relation with the lower end portion of theside strips.

In testimony whereof I afiix my signature.

ALFRED HOKANSON.

